Out of bound reference.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34461 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp
index 1a598e8ea91636a73accd03c25ec2152c264f1e0..85ff1c182dc6602f333bc460283336c10a070af4 100644 (file)
--- a/lib/CodeGen/LiveIntervalAnalysis.cpp
+++ b/lib/CodeGen/LiveIntervalAnalysis.cpp
@@ -1451,10 +1451,10 @@ bool LiveIntervals::differingRegisterClasses(unsigned RegA,
 /// reg between indexes Start and End.
 bool
 LiveIntervals::hasRegisterUse(unsigned Reg, unsigned Start, unsigned End) {
-  for (unsigned Index = Start+InstrSlots::NUM; Index != End;
+  for (unsigned Index = Start+InstrSlots::NUM; Index < End;
        Index += InstrSlots::NUM) {
     // Skip deleted instructions
-    while (Index != End && !getInstructionFromIndex(Index))
+    while (Index < End && !getInstructionFromIndex(Index))
       Index += InstrSlots::NUM;
     if (Index >= End) break;